You may want to do this w/ every table to get into the habit and it looks natural; the table touch. If you suspect you have patrons who will be so chatty they’ll become a time sink (elderly or drunk persons, for example), touch the table w/ the fingertips of one hand as you arrive and remove those fingertips as you leave. It will make it easy for you to leave on subsequent trips w/o appearing to flee.
I had to learn this at the country club I served at; most of my customers were elderly AND drunk. The experienced servers called it ‘landing and take off’ and when using it I never heard a complaint that the customer wasn’t satisfied w/ the attention I’d paid.
“But I need both hands to write on my order pad!”, you’ll say. Only do so as you walk away, but after you’ve repeated the orders back to the customers, showing them you’ve heard w/ some level of eye contact.
CYA when it comes to your pay; every level of restaurant has its own kind of customer-led scam - find out what yours is before you start serving.
Count out cash payments twice to the payor.
Clearly enter people’s orders into the machine and correct any errors immediately to cut down on comps.
Don’t be afraid to notify your manager if it looks like everyone’s leaving a table w/o paying, chances are YOU will be held responsible for the value of that bill. This can be dicey if it’s illegal to smoke in restaurants in your state and the patrons claim to be going for a smoke.
I don’t envy you the junior high soap opera you’re about to go work in; keep your personal info to yourself, it becomes currency.